There's this old bookstore that has always looked sketchy. It's in a district that's had a lot of development over the past like 20 years, but that place remains. I tried checking it out once when I was younger, at least 18 if not 21. There was one car in the lot when I got there and I started to walk inside. As I was approaching, a guy stepped out and said something to the effect of, "what are you looking for?" And I answered that I wanted to browse the books. He responded, "there's nothing for you here." So I said, "okay" and I left. Haven't been back since, haven't been around there in a bit but it's probably still there.
Could be one of those shops that sell rare books, like first editions. Probably didn't want some kid getting their (figuratively) sticky hands all over them.
Hey, maybe if you go back you might find the Necronomicon or something in there and kick off some movie plot.